Tulsa Company is a car brake repair and replacement company operating in the after$-$sales market. Tulsa's purchasing manager uses two suppliers $($Stridulo and Fallimento$)$ for the source of its passenger car brakes. Data relating to brake discs $($Discs$)$ and brake pads $($Pads$)$ are given below.

I. Activity costs

Activity

Adverse buying$*696,000$

Supplier returns$**82,500$

$*$Extra cost of purchasing from local car dealer because of insufficient delivery of supplier.

$**$Brakes returned because they were not ordered or because they were defective.

II$.$ Supplier Data

Stridulo Brakes Fallimento Brakes

Discs Pads Discs Pads

Unit purchase price $$80$ $$135$ $$77$ $$132$

Units purchased $15,00015,00030,00030,000$

Insufficient units $7507503,6003,600$

Returned units $3753751,5001,500$

Required:

$1.$ Calculate the activity rates for assigning costs to suppliers.

Adverse buying rate $fill in the blank $1$

per adverse purchase

Supplier return rate $fill in the blank $2$

per return

$2.$ Calculate the total unit purchasing cost for each component for each supplier. If required, round your answers to the nearest cent.

Total unit cost

Stridulo Brakes Fallimento Brakes

Discs $fill in the blank $3$

$fill in the blank $4$

Pads $fill in the blank $5$

$fill in the blank $6$